Sen. Ted Cruz

March 21, 2013

Chip Somodevilla/Getty Images

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WASHINGTON, DC - JANUARY 31: Senate Armed Services Committee member Sen. Ted Cruz (R-TX) (L) talks with committee Chairman Carl Levin (D-MI) (R) as they and former U.S. Senator Chuck Hagel (R-NE) arrive for Hagel's confirmation hearing to become the next secretary of defense on Capitol Hill January 31, 2013 in Washington, DC. President Barack Obama nominated Hagel, a controversial choice as Hagel opposed former President George W. Bush and his own party on the Iraq War and upset liberals with his criticism of a gay ambassador, for which he later apologized.

Chip Somodevilla/Getty Images

6of21

WASHINGTON, DC - JANUARY 31: Senate Armed Services Committee member Sen. Ted Cruz (R-TX) (L) talks with committee Chairman Carl Levin (D-MI) (R) as they and former U.S. Senator Chuck Hagel (R-NE) arrive for Hagel's confirmation hearing to become the next secretary of defense on Capitol Hill January 31, 2013 in Washington, DC. President Barack Obama nominated Hagel, a controversial choice as Hagel opposed former President George W. Bush and his own party on the Iraq War and upset liberals with his criticism of a gay ambassador, for which he later apologized.